(19)

(11)

EP 2 920 561 A1

(12)

(43) Date of publication: 23.09.2015 Bulletin 2015/39 (21) Application number: 13798471.2 (22) Date of filing: 12.11.2013

(51) International Patent Classification (IPC):  G01J 3/02(2006.01) G01J 3/28(2006.01) G01J 3/04(2006.01) (86) International application number: PCT/US2013/069591 (87) International publication number: WO 2014/078281 (22.05.2014 Gazette 2014/21)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 15.11.2012 US 201261726650 P 13.03.2013 US 201313798816 (71) Applicant: Corning Incorporated Corning, New York 14831 (US)	(72) Inventors: COMSTOCK, II, Lovell Elgin, II Charlestown, New Hampshire 03603 (US) WIGGINS, Richard Lynton Keene, New Hampshire 03431 (US) WOODARD, Kenneth Smith New Boston, New Hampshire 03070 (US) (74) Representative: Greene, Simon Kenneth  Elkington and Fife LLP Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)